Most carpet Manufactures apply protector at production to help your carpet stay cleaner longer. Over time this protectant wears off. Carpet 911 Cleaning & Restoration always recommend an application of carpet protector. Reapplying the carpet protector helps restore protective properties to your carpet, and always let you take care of any spills before they turn into stains. Carpet protector also helps extend the life of your carpet and make it easy to care for.